Investigation of mechanical properties of reinforced aluminum-based nanocomposites with clay nanoparticles
Aluminum matrix composite (AMC) has many applications in the military and aerospace industries due to its improved mechanical and physical properties. In this research, "A357" aluminum base nanocomposites reinforced with clay nanoparticles with weight percentages of 0.5, 1 and 1.5 in different conditions such as different cooling rates of the melt and alloy state made using stir casting method. Numerous tests have determined and evaluated their mechanical properties such as Young's modulus, yield strength, ultimate tensile strength, stiffness, change in length during yield, change in length during failure, fracture toughness and hardness. According to the results, it was found that by adding clay nanoparticles to A357 aluminum, the mechanical properties of the resulting nanocomposite are far better than the base alloy. Among the nanocomposites made under different conditions, the best mechanical properties belong to nanocomposites reinforced with nanoclay particles a weight percentage of 1. Compared to the base alloy, the yield stress of this nanocomposite has been improved by 42%.
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